US3106791A - Reinforcing heel insert and heel - Google Patents

Reinforcing heel insert and heel Download PDF

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Publication number
US3106791A
US3106791A US69689A US6968960A US3106791A US 3106791 A US3106791 A US 3106791A US 69689 A US69689 A US 69689A US 6968960 A US6968960 A US 6968960A US 3106791 A US3106791 A US 3106791A
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US
United States
Prior art keywords
projections
heel
dowel
head
reinforcing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US69689A
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English (en)
Inventor
Arthur F Ball
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Essex Products Inc
Original Assignee
Essex Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Essex Products Inc filed Critical Essex Products Inc
Priority to US69689A priority Critical patent/US3106791A/en
Application granted granted Critical
Publication of US3106791A publication Critical patent/US3106791A/en
Priority to BE640630A priority patent/BE640630A/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B21/00—Heels; Top-pieces or top-lifts
    • A43B21/02—Heels; Top-pieces or top-lifts characterised by the material
    • A43B21/20—Heels; Top-pieces or top-lifts characterised by the material plastics
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B21/00—Heels; Top-pieces or top-lifts
    • A43B21/36—Heels; Top-pieces or top-lifts characterised by their attachment; Securing devices for the attaching means
    • A43B21/42—Heels with replaceable or adjustable parts, e.g. top lift

Definitions

  • the present invention is primarily directed, dealing with a new and improved reinforcing dowel or insert of the type disclosed in the said co-pending application that is more particularly adapted for utilization with molded plastic lifts and the like, particularly where plastic materials are employed that are of the types that tend to stretch upon impact.
  • a further object of the invention is to provide a new and improved heel-reinforcing dowel.
  • Still an additional object is to provide a new and improved heel of the character described.
  • the present invention involves the employment of a longitudinally extending reinforcing dowel of hard metal and the like for a relatively fragile heel, the dowel being provided at one end with a head of cross-dimension large compared with that of the body of the dowel and provided along the periphery of the head with longitudinally extending separated projections.
  • a longitudinally extending reinforcing dowel of hard metal and the like for a relatively fragile heel, the dowel being provided at one end with a head of cross-dimension large compared with that of the body of the dowel and provided along the periphery of the head with longitudinally extending separated projections.
  • FIG. 1 is a perspective view of a reinforcing dowel or insert embodying the invention in preferred form, and secured to a toplift;
  • FIG. 2 is a fragmentary longitudinal view of the lower end of the dowel
  • FIG. 3 is a view similar to FIG. 1, upon a somewhat reduced scale, of a heel strengthened by the insert of FIGS. 1 and 2 and provided with a toplift secured thereto through the medium of that insert;
  • FIGS. 4 and 5 are fragmentary views, similar to FIG. 1, of modification.
  • a reinforcing dowel insert of the general type described in the said copending application is illustrated at 11, as of hardened steel and the like, intermediately provided with ridge means 15 for driving into the walls of a recess 9 in the thin stem 5 of a plastic or similar heel 1, FIG. 3.
  • the recess 9 extends from the lift end 7 of the heel toward the heel seat 3.
  • the ridge means 15 is shown in the preferred form of a plurality of separated sections, though continuous ridge means or other securing means may be employed, as disclosed in the said copending application; in all cases, the ridge means 15 being of slightly greater diameter than the body of the dowel 11 and 3, 1 0 6,791 Patented Got. 1 5, 1 963 "ice slightly greater than the corresponding diameter of the recess 9 in the heel stem 5, in order that the driving of the insert 11 into the recess 9 will secure the dowel against all possible longitudinal, circular or other movement therein.
  • the longitudinally extending dowel 11 is provided with a head 17 which is of diameter much larger than that of the ridges 15, and that protrudes below the lift-receiving region 7 of the heel stem 5, when the dowel is driven into the recess 9.
  • the periphery of the dowel head 17 is provided with alternately upwardly and downwardly longitudinally extending projections 2 and 4.
  • the projections of the set of upwardly extending projections 2 are spaced or separated from one another circumferentially about the periphery of the head v'17, as are the downward projections of the set of projections 4, with the projections 2 being interlaced between the projections 4 and extending upward from the space between adjacent downwardly extending projections 4, for an important purpose, later described.
  • the preferably substantially rectangular projections 2 extend upwardly from the periphery of the head 17.
  • This construction may readily be obtained by bending upwardly successive segments of a peripheral flange of a larger-diameter head 17 to form the projections or prongs 2, and then bending downwardly the remaining peripheral portions adjacent thereto, as at 4, in manner so as to provide nonparallel diverging or converging side edges 4.
  • the projections 4 are preferably also bent either inwardly or outwardly to provide a somewhat arcuate, rather than straight rightangular, locking pocket 4-" between the inner surfaces thereof and the head 17.
  • the dowel 11 is then ready for insertion within a jig, not shown, that receives the lower ridged portion of the dowel and seats the toplift end 17 thereof in a cavity that is to be filled with the plastic material from which the toplift 8 is to be molded.
  • a somewhat tapered section 1% is provided, preferably of greater diameter than that of the ridges 15, and converging slightly from the head 17 to insure that, when the head 17 is seated in the mold cavity, the free edges of the projections 2 are free of the bottom wall of the cavity and thus can be adequately covcred-over with the plastic lift-producing material.
  • dowel 11 for a spike plastic heel may be made of No. 1039 steel wire hardened to 4548 on the Rockwell-C scale, having a body diameter of about 0.141 inch, ridges 15 of about 0.145 inch diameter, a head 17 about 0.250 inch in diameter, projections 2 and 4 of overall width about 0.1 inch, and a tapered section 10 reducing to a diameter about 0.148 inch.
  • Such a dowell 11 has been found extremely satisfactory for use with urethane, polyurethane and other impact-stretchable plastic lifts, including, also, some forms of nylon and the like, which, however, unlike the urethane, are much more resistant to stretching under impact.
  • the height of the molded lift 3 will be slightly greater than the over-all height of the oppositely extending projections 2 and 4.
  • the downward projections 4 may be desired, as in the embodiment of FIG. 5; whereas, in other applications the set of upward projections alone may be used, FIG. 4.
  • the downward and upward sets of projections may also be interchanged, if desired, and the projections 4 may alone be used as upward projections.
  • the downward projections alone are used, however, as in FIG. 5, the same advantages as exist in the embodiment of FIG. 1 obtain wherein the downwardly extending projections serve also to assist as Wearing surfaces as the plastic heel becomes worn away.
  • said dowel having a lift of plastic material that tends to stretch under impact molded over said head, with plastic received within the spaces between and locking to the projections, the head, and the adjacent portion of the body of the dowel, the height of said lift being only slightly greater than the overall height of said oppositely extending projections.
  • a fragile plastic heel having a narrow longitudinal stem recessed from a lift-receiving end upward to a heel seat, a reinforcing dowel of hard metal being intermediately provided with ridge means of crossdimension slightly larger than that of said recess and being driven into said recess and locked within the walls thereof, said dowel having at one end an integral head located below the lower end of said recess, said head being of larger cross-dimension than said ridge means and having at a plurality of spaced regions along its periphery a corresponding plurality of longitudinally extending projections, said projections diverging from said head about bending lines which are substantially circumferential with respect to the axis of said dowel and being separated from the body of said dowel with their major inner surfaces facing said axis, and a lift of plastic material that tends to stretch under impact molded over said head and projections with the plastic received within the spaces between and locking to the projections, the head, and the adjacent portion of the body of the dowel, the upper surface of the lift contacting

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US69689A 1960-11-16 1960-11-16 Reinforcing heel insert and heel Expired - Lifetime US3106791A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US69689A US3106791A (en) 1960-11-16 1960-11-16 Reinforcing heel insert and heel
BE640630A BE640630A (en(2012)) 1960-11-16 1963-11-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69689A US3106791A (en) 1960-11-16 1960-11-16 Reinforcing heel insert and heel

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US3106791A true US3106791A (en) 1963-10-15

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BE (1) BE640630A (en(2012))

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196560A (en) * 1963-08-19 1965-07-27 Hollis Heels Ltd Shoe heel reinforcing dowel and top lift
US3200518A (en) * 1964-03-18 1965-08-17 Richard E Rasmussen French heel structure
US5391029A (en) * 1992-06-26 1995-02-21 W. A. Deutsher Pty. Ltd. Fastening nail
US5489179A (en) * 1994-08-19 1996-02-06 Illinois Tool Works Inc. Fastener and building assembly comprising workpiece, substrate, and fastener
US5661938A (en) * 1996-02-02 1997-09-02 Illinois Tool Works Inc. Easy drive concrete fastener system
US5741104A (en) * 1994-08-19 1998-04-21 Illinois Tool Works Inc. Steel fastener having grooved shank
US20040163576A1 (en) * 2003-02-18 2004-08-26 Marcio Gerep Refractory system having improved anchoring stud
US20040228705A1 (en) * 2003-05-16 2004-11-18 Abbott-Interfast Corporation. Fasteners for composite material
US20070062628A1 (en) * 1999-06-18 2007-03-22 Woodwelding Ag Integral joining
US20070177960A1 (en) * 2006-01-10 2007-08-02 Mark Tadros Nail with multiple shank deformations
US20200029654A1 (en) * 2017-04-14 2020-01-30 Angela M. Yangas Heel tip cushion with anchoring mechanism inside heel stem
US11297900B2 (en) * 2017-04-14 2022-04-12 Angela M. Yangas Heel tip cushion with anchoring mechanism inside heel stem
US20220225733A1 (en) * 2017-04-14 2022-07-21 Angela M. Yangas Heel tip cushion with anchoring mechanism inside heel stem
US12262790B1 (en) 2024-10-24 2025-04-01 El A. Panda Changeable top lift heel system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB826006A (en) * 1955-04-01 1959-12-23 Ernest George Fussell Improvements in moulded top pieces and the like for shoes and boots
US2937461A (en) * 1957-07-16 1960-05-24 Joseph F Trela Detachable top lift
FR1238402A (fr) * 1959-07-01 1960-08-12 Bonbout perfectionné pour talons de chaussures
FR1227916A (fr) * 1958-07-24 1960-08-24 Brueder Winkle Talon de chaussure de dame en bois ou en matière synthétique à tige mince
GB847575A (en) * 1959-01-08 1960-09-07 Rosenblatt & Sons Ltd R Improved article of footwear
GB853118A (en) * 1958-04-25 1960-11-02 Robert Hyman Goldbaum Reinforced heel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB826006A (en) * 1955-04-01 1959-12-23 Ernest George Fussell Improvements in moulded top pieces and the like for shoes and boots
US2937461A (en) * 1957-07-16 1960-05-24 Joseph F Trela Detachable top lift
GB853118A (en) * 1958-04-25 1960-11-02 Robert Hyman Goldbaum Reinforced heel
FR1227916A (fr) * 1958-07-24 1960-08-24 Brueder Winkle Talon de chaussure de dame en bois ou en matière synthétique à tige mince
GB847575A (en) * 1959-01-08 1960-09-07 Rosenblatt & Sons Ltd R Improved article of footwear
FR1238402A (fr) * 1959-07-01 1960-08-12 Bonbout perfectionné pour talons de chaussures

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196560A (en) * 1963-08-19 1965-07-27 Hollis Heels Ltd Shoe heel reinforcing dowel and top lift
US3200518A (en) * 1964-03-18 1965-08-17 Richard E Rasmussen French heel structure
US5391029A (en) * 1992-06-26 1995-02-21 W. A. Deutsher Pty. Ltd. Fastening nail
US5741104A (en) * 1994-08-19 1998-04-21 Illinois Tool Works Inc. Steel fastener having grooved shank
US5489179A (en) * 1994-08-19 1996-02-06 Illinois Tool Works Inc. Fastener and building assembly comprising workpiece, substrate, and fastener
US5867958A (en) * 1996-02-02 1999-02-09 Illinois Tool Works Inc. Easy drive concrete fastener system
US5661938A (en) * 1996-02-02 1997-09-02 Illinois Tool Works Inc. Easy drive concrete fastener system
US7815409B2 (en) * 1999-06-18 2010-10-19 Woodwelding Ag Integral joining
US20070062628A1 (en) * 1999-06-18 2007-03-22 Woodwelding Ag Integral joining
US20040163576A1 (en) * 2003-02-18 2004-08-26 Marcio Gerep Refractory system having improved anchoring stud
US7469507B2 (en) * 2003-02-18 2008-12-30 Sage Of America, Inc. Refractory system having improved anchoring stud
US20040228705A1 (en) * 2003-05-16 2004-11-18 Abbott-Interfast Corporation. Fasteners for composite material
US8430618B2 (en) 2003-05-16 2013-04-30 Abbott-Interfast Corporation Fasteners for composite material
US20070177960A1 (en) * 2006-01-10 2007-08-02 Mark Tadros Nail with multiple shank deformations
US7665942B2 (en) 2006-01-10 2010-02-23 Stanley Fastening Systems, L.P. Nail with multiple shank deformations
US20200029654A1 (en) * 2017-04-14 2020-01-30 Angela M. Yangas Heel tip cushion with anchoring mechanism inside heel stem
US11297900B2 (en) * 2017-04-14 2022-04-12 Angela M. Yangas Heel tip cushion with anchoring mechanism inside heel stem
US20220225733A1 (en) * 2017-04-14 2022-07-21 Angela M. Yangas Heel tip cushion with anchoring mechanism inside heel stem
US11523659B2 (en) * 2017-04-14 2022-12-13 Angela M. Yangas Heel tip cushion with anchoring mechanism inside heel stem
US11957209B2 (en) * 2017-04-14 2024-04-16 El A. Panda Heel tip cushion with anchoring mechanism inside heel stem
US20240260716A1 (en) * 2017-04-14 2024-08-08 El A. Panda Heel tip cushion with anchoring mechanism inside heel stem
US12317954B2 (en) * 2017-04-14 2025-06-03 El A. Panda Heel tip cushion with anchoring mechanism inside heel stem
US12262790B1 (en) 2024-10-24 2025-04-01 El A. Panda Changeable top lift heel system

Also Published As

Publication number Publication date
BE640630A (en(2012)) 1964-03-16

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